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Butt Weld Fittings
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Cast Acrylic Sheet
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Brazil---AimeeIn the latest vendor rating, TOBO won the excellent rating, it is good, will continue to cooperate. -
Thailand ---Dave MulroyASTM A213 T9 Alloy steel pipe ,Stable quality , good price, excellent serive, TOBO GROUP is our trustworthy partner . -
USA ---AlfaroASTM A182 F55 Super Duplex Flange ,Good quality , we like that ! And delivery time in time also ,very professional.
SCM440 Alloy Steel Round Bar 42CRMO Round rod with heat treatment
| Place of Origin | China/Japan/Germany |
|---|---|
| Brand Name | TOBO/TPCO/TISCO/VALIN/METAL |
| Certification | ISO/PED/TUV/SGS/LR/BV |
| Model Number | Stainless Steel Seamless Pipe |
| Minimum Order Quantity | 0.5-1 tons |
| Price | negotiable |
| Packaging Details | in plastic bags then in bundles |
| Delivery Time | 15days-> |
| Payment Terms | T/T, L/C, Western Union, MoneyGram |
| Supply Ability | 7500 tons per year |
| Standard | DIN, ANSI, ISO, GB, JIS | Application | Industry, Construction |
|---|---|---|---|
| Surface | BA/2B/NO.1/NO.3/NO.4/8K/HL/2D/1D | Quality | Inspection |
| Processing Service | Cutting | Outer Diameter | 6-813mm |
| Material | Carbon Steel,Stainless Steel,alloy Steel,Brass,copper | Sample | Provided,Free,Available Free Within 7days |
| Highlight | SCM440 alloy steel round bar,42CRMO heat treated rod,nickel alloy steel pipe |
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SCM440 Alloy Steel Round Bar 42CRMO Round rod with heat treatment
Product Description
SAE 4140 Alloy Round Bar Specification
| Standards | Designation |
|---|---|
| ASTM | B 473 |
| Length | Diameter |
|---|---|
| 100mm to 6000mm | 5mm to 500mm |
| Type | Certification |
|---|---|
| SAE 4140 Alloy Round Bar | ISO 9001:2008 |
Other Grade
EN-1A, EN-3B, EN-8, EN-9, EN-16, EN-18, EN-19, EN-24, EN-29B, EN-31, EN-32B, EN-36, EN-36C, EN-42J, EN-45, EN-47, EN-48A, EN-100, EN-111, EN-202, EN-352, EN-353, EN-1117 Etc.
SAE 4140 Alloy Round Bar Chemical Composition
Min. % |
Max % | ||||||||
| Carbon | 0.36 | 0.44 | |||||||
| Silicon | 0.10 | 0.40 | |||||||
| Manganese | 0.65 | 1.10 | |||||||
| Chromium | 0.75 | 1.20 | |||||||
| Molybdenum | 0.15 | 0.35 | |||||||
| Phosphorous | 0 | 0.04 | |||||||
| Sulphur | 0 | 0.04 | |||||||
SAE 4140 Alloy Round Bar Physical Properties
| DENSITY (G/CM 3) | 8.08 |
| DENSITY (LB/IN 3) | 0.292 |
| MELTING POINT (°C) | 1425 |
| MELTING POINT (°F) | 2600 |
SAE 4140 Alloy Round Bar Mechanical Properties
| Mechanical Property Designation | R | S | S | *T | U | V | W | ||
| Limited Ruling Section mm | 250 | 250 | 150 | 100 | 63 | 30 | 20 | ||
| Tensile Strength Mpa | Min | 700 | 770 | 770 | 850 | 930 | 1000 | 1080 | |
| Max | 850 | 930 | 930 | 1000 | 1080 | 1150 | 1230 | ||
| 0.2% Proof Stress Mpa | Min | 480 | 540 | 570 | 655 | 740 | 835 | 925 | |
| Elongation on 5.65√S0 % |
Min | 15 | 13 | 15 | 13 | 12 | 12 | 12 | |
| Izod Impact J | Min | 34 | 27 | 54 | 54 | 47 | 47 | 40 | |
| Charpy Impact J | Min | 28 | 22 | 50 | 50 | 42 | 42 | 35 | |
| Hardness Brinell HB | Min | 201 | 233 | 233 | 248 | 269 | 293 | 311 | |
| Max | 255 | 277 | 277 | 302 | 331 | 352 | 375 | ||
| *Material stocked generally in condition T Check test certificate if critical for end use. |
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JIS G4051 S20C Round Bar Chemical Composition
| Grade | C | Si | Mn | P | S |
| JIS G4051 S20C | 0.18-0.23 | 0.15-0.35 | 0.3-0.6 | ≤0.035 | ≤0.035 |
JIS G4051 S20C Round Bar Physical Properties
| Physical Properties | Metric | Imperial |
| Density | 7.85 g/cm3 | 0.284 lb/in3 |
JIS G4051 S20C Round Bar Mechanical Properties
Grade |
Delivery State |
T.S. N/mm2 Min |
Y.S. N/mm2 Min |
A,% Min |
Z,% Min |
Hardness, (annealing or tempering) HB,max |
Forging ratio | Grain Size (level) |
Nonmetal ratio |
| JIS G4051 S20C | Hot rolled, forged, or heat treatment | 410 | 245 | 25 | 55 | 156 | ≥ 4:1 | ≥ 6 |
≤ 2.0 |
- wrapped in woven straps then wooden boxes or according to customers' requirements
- Shanghai port



contact us.
A: We do sell tubing on an individual basis however there is a $50 "broken box" fee applied to any order less than an entire case.Since we don't offer a way to order individual tube pieces online please call us to place an order over the phone.
A: Yes, our tubing comes in standard 20 foot lengths and will need to ship via freight. I'd also like to mention that there is a broken box charge meaning that if you do not order an entire box of tubing you will be charge additional fees as such. For more information please contact us. Thanks.


